Method for closing bags made of plastics and clamping clip for implementing the method

a technology of plastic bags and clamping clips, which is applied in the direction of flexible elements, containers, applications, etc., can solve the problems of opening or small leakage of the closure, and achieve the effect of facilitating the passing of the clamping clip

Inactive Publication Date: 2009-10-29
FETTE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0011]In an alternative, a further embodiment of the invention provides a double clip, in which each clip portion has a C-shaped clamping clip, on the outside of the C-shaped clamping clip a jaw being formed with internal locking means and on the opposing side of the clamping clip an elongate projection being formed, which may be inserted into the jaw when the clamping clip is pressed together and cooperates in a locking manner with the locking means of the jaw. The locking may, for example, be formed by corresponding teeth on the projection and in the jaw. It is understood that the clamping clip is correspondingly resilient, in order to facilitate the passing of the clamping clip round the end of a bag and simultaneously the pressing together of the clamping clip around the gathered end portion of the bag and at the same time the locking of the jaw and projection. Also, such a clip may be formed in a simple manner in two parts with an intermediate web, which allows subsequent cutting.

Problems solved by technology

A drawback with both methods is that often the slightest leakages occur or the closure opens as a result of mechanical stress.

Method used

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  • Method for closing bags made of plastics and clamping clip for implementing the method
  • Method for closing bags made of plastics and clamping clip for implementing the method
  • Method for closing bags made of plastics and clamping clip for implementing the method

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Embodiment Construction

[0017]While this invention may be embodied in many different forms, there are described in detail herein a specific preferred embodiment of the invention. This description is an exemplification of the principles of the invention and is not intended to limit the invention to the particular embodiment illustrated

[0018]A clip shown in FIG. 1 has a clip body 12 with a clamping clip 14 which is of approximately C-shaped configuration. In the region of one end of the clamping clip 14 a jaw 16 may be seen. Approximately centrally on the rear face of the clamping clip 14 a pull tab 18 is attached. The pull tab may be inserted with its free end into the jaw 16, in order to clamp an object located therebetween.

[0019]In FIG. 2 the clip body is shown in perspective and may be seen more clearly. It has a first clip portion 20 and a second clip portion 22. Each portion 20, 22 has a jaw 16a, 16b with a through-opening 24 and / or 26. One respective pull tab 18a, 18b is connected to the portions 20, ...

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PUM

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Abstract

Method for closing bags made of plastics, in which initially a clip made of plastics is positioned in a clamping manner around the gathered upper end of the bag and subsequently the gathered end of the bag is welded and / or sealed by means of a hot surface.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]Not applicable.STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH[0002]Not applicable.BACKGROUND OF THE INVENTION[0003]Plastics bags are generally used for storing and transporting goods of all types. They are used, amongst other things, for receiving and transporting filter dust. In order to prevent the goods or individual particles from escaping, various possibilities are known for closing the bag. One possibility consists in sealing the open end with a clip. A further possibility consists in welding or sealing the upper ends by means of a hot surface. A drawback with both methods is that often the slightest leakages occur or the closure opens as a result of mechanical stress. With plastics bags which contain toxic material, this has to be avoided at all costs.[0004]The object of the invention, therefore, is to provide a method for closing bags made of plastics, by which it is ensured that the bag is tightly closed and no particles may es...

Claims

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Application Information

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IPC IPC(8): B65D33/16F16J15/02
CPCB65B51/04Y10T24/15B65D63/1027B65D33/1616
InventorNUPPENAU, DETLEFSCHMIDT, DIETERKRUGER, EUGENMARKL, MICHAELMANNSHARDT, JENS
OwnerFETTE